york city, this is -- these are the four movies he watched streaming online in the last week. >> i think people can put their worries at bay for two reasons. the first of which is still by far the most predictive things are the basics, and the campaigns have known these for years, right? where you live, how much you earn, what your party registration is. unless you feel bad about people knowing these basics, you don't need to be wared in the new age. secondly they tried to annan miss the information. they could look to see if you went to barack obama's site wrrks did you go next. but they never linked up that user's number with a voter's name. now, that's because they chose not to. in future years they could. >> companies can. >> companies do all the time. far get, walmart, everyone else tracks who you are on line and offline and tries to match them together. and a question of whether you should be worried about it, i think it depends how much you value the sense of it. the truth is if you don't want anyone to track you, use cash. >> use cash and live in the cage. >> exactly. >> charles,